Random Script appeared at the top of my website

Store Design
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Topic summary

Code is visibly rendering at the top of a Shopify store after recent product uploads, despite no manual coding changes. A screenshot shows script output appearing on-page.

Suspected cause:

  • Identified by a responder as OSS Boomerang (an Akamai open‑source Real User Measurement tool, RUM) that tracks page load and errors. It often appears if a tracking, page‑speed, or debugging tool injects it.

Recent details:

  • Store owner reports using DSers AliExpress for product imports and did not install tracking/page‑speed or debug apps. The issue appeared suddenly after routine uploads.
  • Another merchant reports the same symptom, suggesting it may not be isolated.

Actions taken:

  • Helpers requested the store URL (and password if applicable) to investigate.
  • A provider offered direct help via email; the store owner plans to email them.

Status:

  • No confirmed root cause or public fix posted yet. Likely related to an injected monitoring/debug script, but the exact source remains unverified. Discussion remains open.
Summarized with AI on January 9. AI used: gpt-5.
4

Hi there! I didn’t install any tracking or page speed apps or any debug utility apps. I was uploading products using DSers Aliexpress, and it was fine for the first few months, but yesterday I noticed that I just randomly had that code pop up at the top of my screen. I don’t do any coding myself, and was just trying to upload products to my drop shipping store. Thanks and looking forward to your reply!

-Morgan